Liabilities / Assets
18th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 45-4673395 • 501(c)3 • Naperville, IL
Profile
SCIENTIFIC RESEARCH
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
18th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
19th percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
3rd percentile
Higher net margin than 3% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
13th percentile
Faster asset growth than 13% of similar nonprofits.
Revenue Growth
3rd percentile
Faster revenue growth than 3% of similar nonprofits.
Assets
Down$2,545,217
Down $348,369 (-12%) from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
Down$2,545,217
Down $348,369 (-12%) from 2024
Revenue
Down$295,663
Down $598,280 (-67%) from 2024
Expenses
Up$644,032
Up $356,534 (+124%) from 2024
Net Income
Down-$348,369
Down $954,814 (-157%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
SCIENTIFIC RESEARCH
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Savings and Temporary Cash Investments | $2,751,595 | $2,502,978 | ▼ $248,617 |
| Cash and Non-Interest-Bearing Accounts | $141,991 | $42,239 | ▼ $99,752 |
| Total Assets | $2,893,586 | $2,545,217 | ▼ $348,369 |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $2,893,586 | $2,545,217 | ▼ $348,369 |
| Total Net Assets Fund Balance | $2,893,586 | $2,545,217 | ▼ $348,369 |
| Total Liabilities and Net Assets / Fund Balance | $2,893,586 | $2,545,217 | ▼ $348,369 |
| Name | Title |
|---|---|
| Doug Kissel | President |
| Anthony Hawkins | Director |
| Deanna Doohaluk | Director |
| Randy Jessen | Director |
| Ryan Anderson | Director |
| Joe Slevnik | Secretary/tr |
| Nick Gornick | Vice Preside |
| Line Item | Amount |
|---|---|
| Other Expenses | $555,300 |
| Salaries, Compensation, and Employee Benefits | $88,732 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $88,732 | - | - | $88,732 |
| Other Expenses | $13,894 | - | - | $13,894 |
| Fees for Services Accounting | - | $6,720 | - | $6,720 |
| Insurance | - | $2,252 | - | $2,252 |
| Travel | - | $1,115 | - | $1,115 |
| Office Expenses | - | $33 | - | $33 |
| Information Technology | - | $28 | - | $28 |
| Total Functional Expenses | $633,884 | $10,148 | $0 | $644,032 |
| Line Item | Amount |
|---|---|
| Expenses per Audited Statements | $644,032 |
| Total Expenses per Audited Statements | $644,032 |
| Total Expenses per Form 990 | $644,032 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“Board members review and approve the completed 990.”
“Each year, all officers and members of the executive board shall submit writen responses to questions regarding interests that could give rise to conflict.”
“Documents are made available upon request.”
“All other work supporting”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | SCIENTIFIC RESEARCH |
| IRS990/AllOtherContributionsAmt | 0 | 20 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | false |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | DOUG KISSEL |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6304284500 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 10S404 KNOCH KNOLLS ROAD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | NAPERVILLE |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 60565 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 141991 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 42239 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 162262 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 133401 |
| IRS990/CYOtherExpensesAmt | 0 | 555300 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -348369 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 88732 |
| IRS990/CYTotalExpensesAmt | 0 | 644032 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 295663 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | ORGANIZATIONAL ADMINISTRATION INCLUDING PAYABLES/RECEIVABLES, CONDUCTING MEMBERSHIP MEETINGS, COORDINATING CONTRACTS, AND MAINTAINING THE WEBSITE. BENEFITS APPROXIMATELY 550,000 PEOPLE THAT LIVE IN THE LOWER DUPAGE RIVER WATERSHED. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 6720 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 6720 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | RYAN ANDERSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | DEANNA DOOHALUK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | NICK GORNICK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ANTHONY HAWKINS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | RANDY JESSEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | DOUG KISSEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | JOE SLEVNIK |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | VICE PRESIDE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | SECRETARY/TR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | false |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 7 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 295663 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 7 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 28 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 28 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 2252 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 2252 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 133401 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 133401 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 1 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 162242 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | SCIENTIFIC RESEARCH |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 2893586 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 2545217 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 2893586 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 2545217 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 33 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 33 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherExpensesGrp/Desc | 0 | SC PROJECT / PLAINFIELD |
| IRS990/OtherExpensesGrp/Desc | 1 | MONITORING |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 531258 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 13894 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 531258 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 13894 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 88732 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 88732 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | DOUG KISSEL |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | COORDINATE WATERSHED MONITORING AND ASSESSMENT PROGRAM FOR THE LOWER DUPAGE RIVER WATERSHED. DATA TO BE USED BY LOCAL COMMUNITIES AND THE ILLINOIS EPA. BENEFITS APPROXIMATELY 550,000 PEOPLE WHO LIVE IN THE LOWER DUPAGE RIVER WATERSHED. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 13894 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | PROJECT ACTIVITIES INCLUDE PROJECT MANAGEMENT OF THE PLAINFIELD STREAM RESTORATION PROJECT AS WELL AS MANAGEMENT OF THE FUNDS, BOTH THOSE HELD IN RESERVE AND PAID OUT FOR THE PROJECT. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 531258 |
| IRS990/ProgSrvcAccomActyOtherGrp/Desc | 0 | ALL OTHER WORK SUPPORTING |
| IRS990/ProgSrvcAccomActyOtherGrp/ExpenseAmt | 0 | 88732 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 813621 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 80322 |
| IRS990/PYOtherExpensesAmt | 0 | 202761 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 606445 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 84737 |
| IRS990/PYTotalExpensesAmt | 0 | 287498 |
| IRS990/PYTotalRevenueAmt | 0 | 893943 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -348369 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 2751595 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 2502978 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 162262 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 813621 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 799964 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 876929 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 686125 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 3338901 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 133401 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 80322 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 13450 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 280 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 8964 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 236417 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.93390 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.97460 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 3338901 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 162262 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 813621 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 799964 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 876929 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 686125 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 3338901 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 3575318 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 644032 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 295663 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 644032 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 295663 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 295663 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 644032 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | ALL OTHER WORK SUPPORTING |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | BOARD MEMBERS REVIEW AND APPROVE THE COMPLETED 990. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | EACH YEAR, ALL OFFICERS AND MEMBERS OF THE EXECUTIVE BOARD SHALL SUBMIT WRITEN RESPONSES TO QUESTIONS REGARDING INTERESTS THAT COULD GIVE RISE TO CONFLICT. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | DOCUMENTS ARE MADE AVAILABLE UPON REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PAGE 2, PART III, LINE 4D |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PAGE 6, PART VI, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PAGE 6, PART VI, LINE 12C |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PAGE 6, PART VI, LINE 19 |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | IL |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 2893586 |
| IRS990/TotalAssetsEOYAmt | 0 | 2545217 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 2893586 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 2545217 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 162262 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 10148 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 633884 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 644032 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 2893586 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 2545217 |
| IRS990/TotalOtherProgSrvcExpenseAmt | 0 | 88732 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 633884 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 133401 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 295663 |
| IRS990/TotalVolunteersCnt | 0 | 7 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 2893586 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 2545217 |
| IRS990/TravelGrp/ManagementAndGeneralAmt | 0 | 1115 |
| IRS990/TravelGrp/TotalAmt | 0 | 1115 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 14400 COIL PLUS DRIVE |
| IRS990/USAddress/CityNm | 0 | PLAINFIELD |
| IRS990/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/USAddress/ZIPCd | 0 | 60544 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 7 |
| IRS990/VotingMembersIndependentCnt | 0 | 7 |
| IRS990/WebsiteAddressTxt | 0 | WWW.DUPAGERIVERS.ORG |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | JOE SLEVNIK |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | SECRETARY/TREASURER |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-09-24 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | LOWER DUPAGE RIVER WATERSHED |
| ReturnHeader/Filer/BusinessName/BusinessNameLine2Txt | 0 | COALITION |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | LOWE |
| ReturnHeader/Filer/EIN | 0 | 454673395 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 10S404 KNOCH KNOLLS ROAD |
| ReturnHeader/Filer/USAddress/CityNm | 0 | NAPERVILLE |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | IL |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 60565 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | false |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 364133681 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | LAUTERBACH & AMEN LLP |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 668 N RIVER RD |
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| ReturnHeader/TaxYr | 0 | 2024 |
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